Travel Carbon Footprint Calculator

Estimate CO₂ emissions based on distance and transport type. This is an approximate, educational estimate.

Choose transport type
Enter one-way distance (you can switch to round trip below).
Trip type
How we calculate

Formula: distance × emission factor (kg CO₂ per passenger-km). Round trips multiply distance by 2.

  • Plane: 0.20 kg CO₂ / passenger-km
  • Train: 0.04 kg CO₂ / passenger-km
  • Bus: 0.08 kg CO₂ / passenger-km
  • Car: 0.17 kg CO₂ / passenger-km